package com.iplay.principle.LSP;

import java.util.Collection;
import java.util.HashMap;

/**
 * @author dangwu
 * @since 2021/9/6 4:36 下午
 */
public class Father {
    public Collection doSomething(HashMap map){
        System.out.println("父类被执行。。。");
        return map.values();
    }
}
